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How can you increase the bulb's life in your microscope if the bulb voltage is regulated by a rheostat?
Wiki User
∙ 15y ago
For number six of the microscopy lab I assume: By turning the lamp off and on with the rheostat turned all the way DOWN to the lowest setting it allows for a slow ramping up of the power instead of instantaneously turning on a lamp to the highest and hottest setting.
Wiki User
∙ 15y ago
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Voltage regulated channels can be found where?
in the membrane that covers axonsThey are located in the axon hillock, nodes of Ranvier, and presynaptic terminal of the neuron.
The first voltage-regulated gates encountered along the neuron membrane which initiate the formation of action potentials are located on the neuron near the?
axon hillock
To construct a battery with a current of 6 amps you would connect six 1 amps cells?
You would connect them in parallel to increase the amerage. If you connect them in series it would increase the voltage. Connected in series-parallel would increase both voltage and amerage.
What is end cell voltage?
end cell voltage
How does the voltage measured across a dry cell ompare with the voltage drop measured across three bulbs in series?
How does the voltage measured across a dry cell ompare with the voltage drop measured across three bulbs in series?
What are 2 mathod of speed regulation in DC motor?
The speed of a dc motor can be regulated by the following means:By varying the supply voltage and byUsing a variable rheostat.
What type of a device is used to increase or decrease the voltage in an electric circuit?
A transformer. A small example is the coil in a motorcar. A transformer, in a power line, only changes voltage in one direction under normal usage. At distribution voltages, about 8360 VAC, the voltage is monitored by a regulator. A regulator either increases or decreases the voltage automatically to insure the desired voltage is steady. This regulated voltage is then fed to transformers to provide customers with a regulated voltage at the desired voltage.
Can a rheostat be used to control speed on a capacitor run motor?
No. If you attempt to reduce the voltage to a cap start motor by using a rheostat, you can destroy the motor.
What is the name of device to check automatic circuit breakers Its operation is the following you supply voltage with smoothly or uneven increase till breaker trips. thank you?
It is called a rheostat, it is a variable transformer
What is a device that increase or decreases voltage in a power line?
A transformer. A small example is the coil in a motorcar. A transformer, in a power line, only changes voltage in one direction under normal usage. At distribution voltages, about 8360 VAC, the voltage is monitored by a regulator. A regulator either increases or decreases the voltage automatically to insure the desired voltage is steady. This regulated voltage is then fed to Transformers to provide customers with a regulated voltage at the desired voltage.
Explain the rheostat and its advantages in electric circuits?
Advantages in electric circuits : Advantages of using the rheostat in electric circuits is optional as you could just use the dial on the power-supply to vary the voltage (p.d.), and therefore the current. The advantage of using the rheostat is that you can control it to give you nice even numbers for the voltage.
When the voltage applied to the rheostat is doubled then tripled what happens to the rheostat?
The heat released by the rheostat with double the voltage will quadruple. When voltage is tripled, the power loss is 32 or 9 times that before. A rheostat is a kind of variable resistor. Since E = IR (voltage equals current times resistance), then I = E/R (current equals voltage divided by resistance). If the voltage is doubled and the resistance stays the same, then--you can see by the formula--the current would double. Now, power dissipated by a resistor is related to the product of the current and voltage (P = IE). But since a doubling of voltage produces also a doubling of current, double the current results in 2X2=4 times the power (heat) loss.
What is the function of ic17805?
it is the voltage regulated
How do you drop the voltage of a 12v dc motor to slow it down?
Install a rheostat in series with the motor.
What happen to the output voltage of the DC power supply if turn ratio in the secondary winding are reduce?
For linear supplies, the straightforward answer is: THE VOLTAGE GOES DOWN. For regulated unipolar switching supplies (all bets are off), it is likely that your pulse width will increase until you are at the regulated voltage set at the chip. Not all DC supplies behave the same way.
In a DC circuit is there an alternate to rheostat for controlling the battery voltage?
In a DC circuit, one alternate to the rheostat for controlling battery voltage is a voltage regulator. You could build a linear regulator, but you need to consider the power that might be dissipated - this would be the same amount of power dissipated by the rheostat. You could also build a switching regulator - this would be more complex, but it could be more efficient because the dissipation across the regulator would be less.
Why output voltage is not regulated?
12 volts
